Something (ethernet driver/port) is bottlenecking my internet speeds

rcsrex · April 28, 2015

...and I suspect it might be my ethernet drivers (Qualcomm Killer Network Manager) that came with my MSI Z87-GD65. When I realized that I was not getting my advertised speeds (200 Mbps down/ 20 up), I went out and got a spare ethernet cable to test on, and it showed that while I was getting around 70 Mbps down and 20 up from my PC, on the living room one (some mini dell optiplex with windows 7), it was getting slightly ABOVE 200/20. I've come to the conclusion that my drivers are what is pulling me down, but I haven't not a single clue how to fix this. Can anyone help me out? Last time I tried uninstalling it, my ethernet port just became dead until I re-installed it.

The version of the driver I have is 1.1.47.1374. I can't figure out if I can update/find a later driver.

TetraSky · April 28, 2015

Latest is "1.1.51.1426"

rcsrex · April 28, 2015

Latest is "1.1.51.1426"

Just updated it and it's still the same speeds

TetraSky · April 28, 2015

So, did you test the speed of your PC in the living room, or did you just bring a different cable to your PC somewhere else if your home?

Did you use the same cable to test the speed on both the living room PC and your PC or did you use a different cable?

If you used a different cable, might I suggest you try plugging your PC in the living room and try with the Eternet cable that's plugged in the Dell Optiplex?
Sometimes it can just be the difference in cable that breaks everything, the lenght of the cable may also affect things.

Then there's possibly some QoS feature in the router itself that may reduce the speed of your connection to your PC, because someone else in the home wanted more bandwidth and you were hogging it all or something.

Are you connected directly to the router? Are you passing through any Switch, Powerline or the like?

Or you could try this, you're not losing much to try.
http://www.techpowerup.com/forums/threads/guide-turn-your-killer-e2200-nic-into-qualcomm-athero-ar8161.198899/

Looks easy enough, clear instructions and even provide a tool to get rid of the "killer" softwares afterward.